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What is the registry key to prevent Outlook 2007 from creating PST files?

I added the following DWORD in the registry of clients running Outlook 2003: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\11.0\Outlook\DisablePST
Setting the value to 1 prevents Outlook 2003 from creating PSTs but still allows it to open existing ones.

When I add the same DWORD to the registry of clients running Outlook 2007 (replacing the 11.0 with 12.0) and set the value to 1, they can't open existing PST files.

Is there a different registry entry for Outlook 2007 that will prevent the creation of new PST files but still allow the openning of existing PST files?

Thank you.

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CptnTrips

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CptnTrips

Sorry about that, didn't include the whole clip! That registry change also prevents the use of PST as you have already discovered. Try opening the \SYSTEM32\MAPISVC.INF file and removing the entry "MSPST MS=Personal Folders" from the [Services] area in the file

cyberleo2000

ASKER

REG_DWORD in the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\10.0\Outlook\DisablePST affects only Outlook 2002\XP, which we no longer use.

REG_DWORD in the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\11.0\Outlook\DisablePST affects only Outlook 2003. In this case seting the value at one prevents creating NEW psts but still allows the opening of EXISTING psts. This is the functionionality I am looking for with Outlook 2007.

REG_DWORD in the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\12.0\Outlook\DisablePST affects only Outlook 2007. Setting the value to 1 does prevent creating NEW psts but it also prevents opening EXISTING ones.

This is my problem, how can I prevent the creation of NEW psts with Outlook 2007 yet allow Outlook 2007 to open EXISTING psts.

BTW: the entry "MSPST MS=Personal Folders" does not exists in my MAPISVC.INF.

Looks like this one is a toughie.

cyberleo2000

ASKER

thank you for the asistance BTW though

CptnTrips

Thanks for posting that info!

pisboi

It is easier if you download the Office 20xx ADM or ADMX files for Group Policy. At least for 2007 and 2010 there is a setting under "Microsoft Office Outlook 20xx/Miscellaneous/PST Settings" called "Prevent Users From Adding New Content to Existing .PST Files". Although this does not prevent users from creating PST files, it does prevent them from adding data to it.